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Fairchild - 8-Bit Bidirectional Binary Counter with 3-STATE Outputs

Numéro de référence 74F779PC
Description 8-Bit Bidirectional Binary Counter with 3-STATE Outputs
Fabricant Fairchild 
Logo Fairchild 





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74F779PC fiche technique
April 1988
Revised March 2000
74F779
8-Bit Bidirectional Binary Counter with 3-STATE Outputs
General Description
The 74F779 is a fully synchronous 8-stage up/down
counter with multiplexed 3-STATE I/O ports for bus-ori-
ented applications. All control functions (hold, count up,
count down, synchronous load) are controlled by two mode
pins (S0, S1). The device also features carry lookahead for
easy cascading. All state changes are initiated by the rising
edge of the clock.
Features
s Multiplexed 3-STATE I/O ports
s Built-in lookahead carry capability
s Count frequency 100 MHz typ
s Supply current 80 mA typ
s Available in SOIC (300 mil only)
Ordering Code:
Order Number Package Number
Package Description
74F779SC
M16B
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74F779PC
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
Connection Diagram
© 2000 Fairchild Semiconductor Corporation DS009593
www.fairchildsemi.com

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